Using the standard open source huVVer-AVI™ instrument hardware baseline, the device is preloaded with the huVVer-AVI™ Transponder Controller (TBX) firmware and connects between a compatible serial altitude encoder and a tailBeaconX™ Mode-S/ES diversity transponder. It relays the altitude information from the encoder (or a compatible EFIS device or encoding altimeter) and provides the ability to enter Squawk codes, control the transponder Modes, and provide diagnostic information.

Created for experimental aircraft applications, the huVVer-AVI Transponder Controller provides a bright 2.4 inch (61 mm) LCD screen, dual RS-232 serial ports, a sensor input for an optional external IDENT switch, and four front-panel pushbuttons. Versions are available for either 2.25” or 3.125” standard aircraft panel cutout sizes. Both 14V and 28V electrical systems are supported.

Downloads:

The huVVer Mk1 is available as an open source hardware design and the schematics and information can be downloaded at this page: http://www.huvver.tech/huvver-page/

The huVVer-AVI Transponder Controller downloadable App is provided at http://www.huvver.tech/huvver-avi-tbx-app/.

Features:

  • Provides a complete control head for the uAvionix tailBeaconX™ diversity transponder.
  • Works with existing serial altitude encoders, Electronics Flight Instrument Systems (EFIS), or encoding altimeters.
  • Supports an optional external IDENT button.
  • Software App updatable using WiFi for Over-The-Air (OTA) software upgrades.
  • Daylight Readable 850 cd/m2 320 x 240 pixel US-made color display.
  • Operates from 8 to 35 Volts DC with -20 °C to +55 °C ambient temperatures and provides extensive power and I/O conditioning to increase reliability in harsh environments

Installation:

Full installation guide is located here: https://www.huvver.tech/wp-content/uploads/huVVer-AVI-TBX-V3A.pdf

For installation, you will need Mil-spec wire, a number of crimp terminals and at least one connector housing. Appropriate terminal crimper, wire cutter and wire stripper tools are also required.

  • Crimp Pins: Digikey WM2312-ND. Note: MakerPlane supplies 10 pins with each instrument.
  • Connector Housing: DigiKey WM2006-ND. Note: MakerPlane supplies two housings with each instrument.
  • Wire and wiring supplies: Mil-spec M22759/16-22 (22 AWG single), M27500/20SB1T23 (22 AWG shielded single wire), M27500/22SB2T23 (22 AWG shielded pair), plus a circuit breaker as required.

Available from Aircraft Spruce or ProWire USA.